.flex_row {
  display: -webkit-flex;
  display: flex;
  flex-direction: row;
}
.flex_column {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
}
.flex_space_between {
  justify-content: space-between;
}
.flex_space_around {
  justify-content: space-around;
}
.flex_space_center {
  justify-content: center;
}
.flex_space_start {
  justify-content: flex-start;
}
.flex_space_end {
  justify-content: flex-end;
}
.flex_wrap {
  flex-wrap: wrap;
}
.align-items_start {
  align-items: flex-start;
}
.align-items_end {
  align-items: flex-end;
}
.align-items_center {
  align-items: center;
}
